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Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair
65°F
18°C
| Humidity | 73% |
| Wind Speed | S 5 mph |
| Barometer | 29.97 in (1014.7 mb) |
| Dewpoint | 56°F (13°C) |
| Visibility | 9.00 mi |
| Last update | 11 Oct 8:54 pm CDT |
Extended Forecast for
Niantic IL
Tonight
Low: 62 °F
Partly Cloudy
Columbus Day
High: 90 °F
Sunny
Monday Night
Low: 70 °F
Clear
Tuesday
High: 91 °F
Sunny
Tuesday Night
Low: 68 °F
Chance
T-storms then
Showers
LikelyWednesday
High: 80 °F
Showers
Wednesday Night
Low: 60 °F
Showers
LikelyThursday
High: 74 °F
Showers
Thursday Night
Low: 52 °F
Chance
T-storms
Detailed Forecast
Tonight
Partly cloudy, with a low around 62. South wind 5 to 7 mph.
Columbus Day
Sunny, with a high near 90. Southwest wind 7 to 16 mph, with gusts as high as 21 mph.
Monday Night
Clear, with a low around 70. South southwest wind 9 to 13 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 91. West southwest wind 10 to 14 mph, with gusts as high as 18 mph.
Tuesday Night
A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Increasing clouds, with a low around 68. South southwest wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers. High near 80. Light and variable wind becoming west 5 to 7 mph in the morning. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 60. Northeast wind 8 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Showers, with thunderstorms also possible after 1pm. High near 74. Chance of precipitation is 80%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 52. Chance of precipitation is 50%.
Friday
Partly sunny, with a high near 64. Breezy.
Friday Night
Partly cloudy, with a low around 37. Breezy.
Saturday
Sunny, with a high near 58.
Saturday Night
Clear, with a low around 35.
Sunday
Sunny, with a high near 66.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Niantic IL
39.85°N 89.17°W (Elev. 600 ft)
39.85°N 89.17°W (Elev. 600 ft)
9:36 pm CDT Oct 11, 2026
9pm CDT Oct 11, 2026-6pm CDT Oct 18, 2026
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